The liberalism that i'm refering to was born post civil rights act (and then became globalism after the cold war) and became the religious faction of the american (who then became global) elites. It's main components (even above the classic individual liberty, that became a justification, not an ideological pilar) the conception than the history is always going forward to perfection (the Good Side Of The Story™, the elites side)and a false sense of enlightament (see 1) that can't fall because they're The Good Guys. Everything else is relative, even classical liberalism.
I can see how you can claim the efects of an sliperly slope here, because in essence the base is the same for every byproduct of Liberal Enlightament™that they're the Good Guys doing the good thing. But tranners/queers twisted it in such a particular way that is "Since we're The Good Guys in the Right Side Of The Story™, it doesnt matter what methods we use since after all everything is going to be alright because thats Our Destiny" and that allows them to indulge in the worst human behavior posible. In a way, i agree with
@Smug that is a result of post Christianity (both post-Protestant and post-Roman Catholic) with the exception that not even in the most convoluted periods of Christian history the militar class and the clerical class ever mixed, but queers are both soldiers and preachers at the same time. That, again, allows special fuckery that only they could cause.